The water purifier is acidic water, and you are embarrassed to advertise it! Illiterate!!!!!!!!!!!!!

Pure water in the chemical sense must be neutral. That is, if we say that there is only H2O in the water and nothing else, it must be neutral. Strictly chemically speaking, the exact pH of pure water in the chemical sense is related to temperature.

That is, the ionization constant of water is related to temperature. That is, even pure water in the chemical sense has different pH values at different temperatures. If you must drink water with a pH value equal to exactly 7, then you will put the absolute pure water that you don't know from ** to the specified temperature before drinking, but as soon as you drink it, it will not be the temperature you specified.

What to do? Let's cool you down to that temperature, too. You won't be able to drink water anymore.

On the other hand, even pure water in the chemical sense is acidic when you leave it in the air for a period of time and absorb carbon dioxide from the air. If you're worried about carbon dioxide in your water, don't drink carbonated drinks. Even you don't breathe.

Even if you have a way to block carbon dioxide, you can't stop your body from metabolizing, which itself produces carbon dioxide. Thirdly, any instrument has a measurement error, it tells you that the pH value of the water is, you can only know that the last 0 is inaccurate, or you only know the pH range of your water, how do you know if the water you drink is acidic or alkaline? Fourth, the actual acidity and alkalinity of water depends on the type of salt dissolved in it and the type of gas and its content. The amount of these substances dissolved in water can be roughly known from the pH value, but it is not possible to know what is dissolved from the pH value.

It is a cognitive misunderstanding to determine whether water is harmful only from its acidity and alkalinity. Finally, science can be exploited by people with ulterior motives to deceive people of good will. In commercial activities, the main manifestation of this exploitation is the use of science to create terror in order to squeeze out opponents for profiteering.

Exaggerating the benefits of water's acidity and alkalinity is a classic manifestation of scientific terrorism. I hope you are a kind person and I hope you are a sane person.

For the problem of acidity and alkalinity, many businesses exaggerate too much, please note that the pH value is 7 as the middle boundary, greater than 7 and less than. There is also a weak alkaline "weak word" is particularly important! That is to say, the problem of 7 1 7 2, according to the theory, pure water is indeed neutral, because the purer it is, the more there is no solute to change its properties, and the water purifier is usually equipped with a fifth-stage coconut shell post-activated carbon filter element, which is to consider neutralizing and fine-tuning the pH value of pure water to improve the taste.

Why does pure water feel a little sweet? What kind of water people drink, whether it is alkaline or acidic or what is good, this does not only depend on the pH value This is like regional differences and climate to form the dietary differences between the north and the south and the east and west The south is sweet and salty in the north Sichuan is spicy, Hunan is spicy and spicy in Yunnan, Shanxi people like to be jealous, and Shanghai people stir-fry and add sugar... What does this have to do with food?

I personally believe that there are three basic standards for drinking water: the first is to be "clean", that is, clean! Safe water without impurities and pollution!!

Otherwise, you soda water every day to drink?? Alkali si you ; The second is "live" that is, to be fresh, fresh means "oxygen-rich", that is, small molecule water, "running water does not rot" is this principle, easy to absorb by the human body; The third is "whole", where the whole refers to the first two on the basis of containing as much as possible the substance, energy and attributes required by the human body, which is a category of nutrition, but it is absolutely unreliable to drink water alone! Calcium and milk, iron, vegetables, zinc, barium, etc., eat more seafood and dried fruits!!

Don't expect you to just drink water ... A person can go without food for more than a decade or even a month (monk), but if you don't drink water for a week, how can you try? Water is the carrier of the human body to regulate body temperature and metabolism, she is not a single sentence "acid and alkali" can explain the narrow misdirection, water is the most wonderful substance in the universe known to the world, she gave birth to life, she has destroyed everything (tsunami Xiao Ri Ben knows best) Water has three forms at the same time Water Qi Ice ,,, For the water of the Holy Spirit, you and I are illiterate We still know too little, too little, too little...

You see which one is acidic.

How so? I don't know what kind of water purifier you have, the general tap water itself is weakly alkaline, but there are some impurities or pollutants in it that affect the weak alkalinity, as long as these pollutants are filtered, it is naturally weakly alkaline, and some water purifiers also have their own mineralization function, which is more stable and weakly alkaline. In addition to the RO membrane water purifier is acidic, the water ionizer can adjust the acid and alkali by itself, the rest of the ultrafiltration membrane filtration machine should be weakly alkaline, if you are weak alkaline at the beginning, and then it changes, is there a problem with the machine?

You should consult with the manufacturer!

First of all, look at the quality of your inlet water, if the inlet water is acidic, the water will be acidic when the water purifier is not effective; The pure water from the RO membrane will not pass through the post-filter element and activated carbon filter element, and the effluent water quality will also show weak acidity.

You use a pure water machine, electricity, wastewater, and an alkaline filter element is installed, and the alkaline filter element loses its effect after a period of use, and the water quality is acidic, but it doesn't matter, the pH of the national standard drinking water is fully qualified.

There must be a problem with your water purifier

What kind of water purifier are you using?It's powerful.

Don't know what the conductivity of your pure water is right now? What was the pH of water before? How long has it been since you changed your pretreatment, and what is the effluent condition of the reverse osmosis membrane? You can make the water for a longer period of time, empty the tank and try to make it again!

Weakly acidic, including bottled purified water sold in the market, and community water vending machines are acidic, you can pick up some water, go to the nearby middle and high schools, they have PH reagents, you can try it.

The water filtered through the RO membrane has a lower value than the incoming water. Acidic!

The role of RO is only reverse osmosis, which can further remove the impurities, but does not change the pH value of its water quality, generally speaking, the pH value of the permeable water is similar to the pH value of the influent water.

The water purifier will not change the acidity and alkalinity of your water, there may be deviations, but it is in line with the drinking water within the standard range.

Standard, the scope of China seems to be, the range of foreign countries is a little larger than ours, besides, the pH value of stomach acid 2 3 You said that after you drink it, you don't change the acidity and alkalinity of the water...

If the influent source is weakly alkaline, the effluent is neutral;

If the influent source is neutral, the effluent is weakly acidic.

Neutral, water that has not undergone RO is weakly alkaline.

From an academic point of view, pure water, also known as high purity water, refers to water with high chemical purity, RO reverse osmosis membrane can only pass through water molecules, and the minerals in it are lost with wastewater, and the wastewater ratio is 3:1, that is, 3-4 cups of water can get a cup of pure water, and the pH value of pure water is, that is, most of the pure water is acidic water, and it is best to neutral water, which does not contain any minerals, which is not conducive to physical health.

The material of Lisheng ultrafiltration machine is unique and patented. It uses its patented alloy ultrafiltration membrane, which can automatically discharge sewage and can be discharged cleanly, so as to achieve a free warranty for three years (written in black and white on the warranty card), and at the same time, it is filtered out of water without impurities such as bacteria, minerals and trace elements.

Then if you use Lisheng ultrafiltration machine + ultrafiltration partner, then the filtered water still has the effect of weakly alkaline water.

It doesn't matter if there are no minerals, there are very few minerals in the water. Water boils less pitiful, it doesn't matter if there is one.

All good drinking water treatment equipment has wastewater, including ultrafiltration machines. There's no waste water bacteria there. If there is too little wastewater, the membrane will not be durable.

Manual and i automatic are not much different in electricity bills, and it doesn't cost much electricity, one kilowatt-hour electricity in forty hours.

Later maintenance mainly depends on the reliability of the businessman.

The water is absolutely safe.

You can refer to the post above, which I did below.

Pure water is acidic water, which is very easy to grow bacteria, and it is definitely not a problem as long as the filter element is changed regularly, but a problem of regular sterilization.

Acidity: The actual reason for CH3OH is that the -CH3 group has the property of pushing electrons, so that the electron cloud density on -OH increases, and the O-H bond is stronger than the O-H bond of water and is not easy to break, so CH3OH is weaker acidic than water.

The first point about proof is correct. The second point is experimentally valid, but this cannot be understood as an acidic effect. If you study chemistry, you will learn that this is a typical nucleophilic substitution reaction, and the degree of such a reaction depends entirely on the nucleophilic ability of the nucleophile.

And i-br-cl-, as a result, reacts most completely with hi. This cannot be called a discriminating effect.

Alcohol is weaker acidic than water. One of the main reasons is the presence of hydrogen bonds in water. So why are there no hydrogen bonds in alcohol?

From a microscopic point of view, in alcohol and water, O is connected to a C, an H and two H respectively. In comparison, there is an H-O, so ignore them for now. In C-O and H-O, the former has fewer shared electron pairs that favor O, that is, the less negative charge the former carries on O, that is, the closer to the positive charge characteristic.

In this way, since the O in the alcohol is prone to positive charge, the attraction to the H atom of the other alcohol is small.

On the contrary, the attraction to H in another water molecule is greater because O in water is more likely to exhibit a negative charge, because H in water can basically be seen as having a positive charge.

Gas phase: acidic: CH3OH>H2O, at this time, the alkyl group is connected to the saturated system, showing electron absorption (induction effect), and when the alkyl group is connected to the unsaturated system, in addition to the induction effect, there is also a superconjugation effect (the main one), and finally presents an electron-giving effect, and the alkyl group is still regarded as an electron-giving group in the general literature.

Alcohol is less acidic than water, the first experiment is correct, but the second experiment is a special case, in chemistry the properties of substances will vary depending on the medium.

Alcohol is weaker acidic than water, and glacial acetic acid is more acidic than water, so methanol is also more acidic than water??? There is no comparison!

Proof that methanol is weaker acidic than water: (acidity: CH3OH is slightly correct In fact, methanol is a non-electrolyte, it cannot be an acid, and the activity of hydrogen in the hydroxyl group in methanol can only be compared, and the activity of hydrogen in the hydroxyl group in methanol is weaker than that in water.)

Acidity is generally judged by the intensity of the reaction with metals and the like, and it should be that water is highly acidic, and water ionized with more hydrogen ions than the same amount of alcohol.

You should take hydrogen bonding into account. There is some truth to what the 3rd floor said. Everyone else is blindly participating in high school perspectives.

But ethanol is definitely weaker acidic than water.

The hydrogen ions ionized in water are more than those ionized in ethanol, and sodium reacts more violently with water than with ethanol.

Alcohol is weaker acidic than water.

Did the landlord see what was said upstairs? Is there anything else you'd like to ask?

A pH less than 7 is acidic.

pH greater than 7 alkaline mentally retarded.

pH>7 water is alkaline; pH<7 water is acidic.

A greater than 7 is alkaline.

Less than 7 is acidic.

Equal to 7 is neutral.

pH greater than water is alkaline.

Less acidic.

You're asking about acid rain, right?